All 5 Uses

phobia
in
Gone Girl
(Edited)

I don't really have any other phobias, but those two are solid—I am the girl who swoons at a paper cut.
p. 155.5

phobias = extreme and unreasonable fears
I have a serious phobia.
p. 156.1

phobia = extreme and unreasonable fear of something
She also had a deep phobia of blood, but I'd wait and let the brilliant detectives figure that out.
p. 177.6 *

phobia = extreme and unreasonable fear
Me, a well-laid history of needle/blood phobia.
p. 259.2
Me, the glass jar of pee hidden in my purse, a doctor's appointment (oh, I can't do a blood test, I have a total phobia of needles …. urine test, that'll do fine, thank you).
p. 259.3

Definitions:

(1) (phobia)
extreme and unreasonable fear of something

Many words end with "phobia" to indicate "fear of" something. It is also common to turn the noun into an adjective with an "ic" suffix; e.g., "phobic" or "xenophobic."
(2) (meaning too rare to warrant focus)